|
|
Publicações
Zhang, X., AN, C., Duan, MG. e Guedes Soares, C. (2017), “Lateral buckling and post-buckling response based on a modified nonlinear pipe-soil interaction model”, Progress in the Analysis and Design of Marine Structures, Guedes Soares, C. & Garbatov Y. (Eds.), Taylor & Francis Group, London, UK, pp. 827-837
Lateral buckling of submarine pipelines under the conditions of high pressure and high temperature is a primary concern for structural integrity. Lateral pipe-soil interaction plays a significant role on lateral buckling and post-buckling. While lateral pipe-soil interaction models current existed fail to truly reflect the nonlinear pipe-soil relationship especially when the lateral resistance exceeds the breakout resistance. To solve this problem, a modified pipe-soil interaction model is proposed. Three dimensional Finite Element Models are built to simulate the lateral buckling and post-buckling. The effects of pipe-soil interaction parameters, initial imperfection shape and out-of-straightness of pipe on critical buckling force and localization patterns of lateral buckling are discussed. Results show that the critical force of lateral buckling is a complex function of many parameters; the residual resistance and corresponding lateral displacement mainly affect the lateral post-buckling response; the localization pattern of lateral buckling is governed mainly by initial imperfection shape function.
Se nao conseguiu obter uma copia desta publicação: Peça uma cópia desta publicação
Para informação sobre todas as publicações do CENTEC pode descarregar: Lista Completa de Publicações do CENTEC
|